Released on: April 8, 2008, 10:47 am

Press Release Author: Macro Sensors

Industry: Industrial

Press Release Summary: Macro Sensors, (www.macrosensors.com), a sensor company
specializing in the manufacture of LVDT-based linear sensors and gaging probes,
offers a DC-operated position sensor that is spring-loaded and offers a two-wire,
loop powered 4 - 20 mA operation commonly used with current-operated process
controllers and recorders.

Press Release Body: Built-in loop powered electronics result in a position sensor
that operates from a DC input and generates a 4-20 mA output that interfaces with
many PLCs, computer-based data processors, and QC data collection systems.
Operating over a wide range of loop supply voltages and with loop resistances up to
800 ohms, GHSI 750 Series position sensors are ideal for use in machine tool
inspection, go/no/go inspection, and statistical quality control info or as part of
a closed-loop control system.

GHSI 750 Series position sensors are also ideal for remote sensing applications in
which AC power is not readily available to operate external signal conditioning.
Hermetically sealed and constructed entirely of stainless steel, the coil windings
are sealed against hostile environments to IEC standard IP-68. These position
sensors can be installed in hazardous locations while the wiring connected to power
supplies, indicators and controllers are in a safe environment.

GHSI 750 Series position sensors consist of a spring-loaded shaft running in a
precision sleeve bearing and connected to the core of an LVDT. The use of a
precision-sleeve bearing results in measurement repeatability of 0.000025 inches
(0.6 :m) or better. A spring-extended plunger is guided by precision sleeve
bearings. The probe shaft is fully extended by a spring exerting a nominal force of
6 to 20 ounces depending upon total range. Macro Sensors supplies an AGD standard
number 9 contact tip that is made from chrome plated hardened tool steel. It is
fully interchangeable with other AGD contact tips.

Available in ranges of +.100 inch (+2.5 mm) to +4.00 inches (+100mm), the maximum
linearity error for a GHSI 750 Series position sensors is \"0.10 of full range output
using a statistically best-fit straight line derived by the least squares method.

For simplified mounting the GHSI 750 position sensors have a 1/2-20 UNF 2A thread on
the front of the housing, permitting the user to install the LVDT in a mating
threaded part or by using the two hex nuts furnished with the sensor. This results
in a ready-to-use package for position measurements and longer range gaging
applications.

For more information on the GHSI 750, please refer to our web site at
http://www.macrosensors.com/lvdt_macro_sensors/lvdt_products/4-20mA_2wire_loop_powered/ghsi_750_spring_loaded_loop_powered.html
or contact the factory at sales@macrosensors.com

About Macro Sensors
Macro Sensors' extensive line of LVDT-based linear and rotary sensors are used for
linear position measurement and feedback in a variety of industrial applications
including factory automation, motion control systems, metal fabricating, automotive
assembly as well as power plants, gas/steam turbines. Incorporated in 1994, the
Company offers more than 200 years of cumulative design and manufacturing experience
by its key staff in serving its OEM and end-user international customer base. On
June 1, 2005, Macro Sensors was acquired by AST, manufacturer of state-of-the-art
Micro-Electro- Mechanical- Structures (MEMS) based pressure sensors, transducers,
and transmitters. Common applications of AST sensor products are in industrial
OEM, hydraulic systems, fuel cells, medical gases, HVAC/R, refrigeration, oil & gas
exploration/production, and off-road vehicles. For more information on AST products
and technology, visit the AST website at www.astsensors.com.



Web Site: http://www.macrosensors.com

Contact Details: U.S. Route 130 North, Bldg. 22, Pennsauken, NJ 08110-1541
Tel: 856-662-8000 Fax: 856-317-1005